Finding the Fourth Proportional to 52,862.09, 72,950.69 and 28,987.34

Step by Step Solution

1. Step 1: Write the proportion equation
   52,862.09 : 72,950.69 = 28,987.34 : x
2. Step 2: Convert to fraction form
   52,862.09/72,950.69 = 28,987.34/x
3. Step 3: Cross multiply
   52,862.09x = 72,950.69 × 28,987.34
4. Step 4: Simplify right side
   52,862.09x = 2,114,646,309.33
5. Step 5: Solve for x
   x = 2,114,646,309.33/52,862.09
6. Step 6: Final answer
   x = 40,003.08